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-rw-r--r--tests/objects/m19342.c12
-rw-r--r--tests/objects/mobject_default_value.nim15
-rw-r--r--tests/objects/t12753.nim22
-rw-r--r--tests/objects/t17437.nim22
-rw-r--r--tests/objects/t19342.nim18
-rw-r--r--tests/objects/t19342_2.nim18
-rw-r--r--tests/objects/t20972.nim15
-rw-r--r--tests/objects/t22301.nim17
-rw-r--r--tests/objects/t3734.nim17
-rw-r--r--tests/objects/t4318.nim17
-rw-r--r--tests/objects/tdefaultfieldscheck.nim16
-rw-r--r--tests/objects/tdefaultrangetypescheck.nim11
-rw-r--r--tests/objects/tillegal_recursion.nim7
-rw-r--r--tests/objects/tillegal_recursion2.nim6
-rw-r--r--tests/objects/tillegal_recursion3.nim6
-rw-r--r--tests/objects/tobj_asgn_dont_slice.nim25
-rw-r--r--tests/objects/tobjconstr.nim79
-rw-r--r--tests/objects/tobjconstr2.nim57
-rw-r--r--tests/objects/tobjcov.nim24
-rw-r--r--tests/objects/tobject.nim74
-rw-r--r--tests/objects/tobject3.nim95
-rw-r--r--tests/objects/tobject_default_value.nim780
-rw-r--r--tests/objects/tobjects_issues.nim117
-rw-r--r--tests/objects/tobjects_various.nim120
-rw-r--r--tests/objects/tobjpragma.nim53
-rw-r--r--tests/objects/toop1.nim85
-rw-r--r--tests/objects/trequireinit.nim10
-rw-r--r--tests/objects/tunsafenew.nim10
-rw-r--r--tests/objects/tunsafenew2.nim15
-rw-r--r--tests/objects/twhen1.nim89
30 files changed, 1852 insertions, 0 deletions
diff --git a/tests/objects/m19342.c b/tests/objects/m19342.c
new file mode 100644
index 000000000..113f65309
--- /dev/null
+++ b/tests/objects/m19342.c
@@ -0,0 +1,12 @@
+struct Node
+{
+  int data[25];
+};
+
+
+struct Node hello(int name) {
+  struct Node x = {999, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+            0, 1, 2, 3, 4, 5, 6, 7 ,8, 9,
+            1, 2, 3, 4, 5};
+  return x;
+}
\ No newline at end of file
diff --git a/tests/objects/mobject_default_value.nim b/tests/objects/mobject_default_value.nim
new file mode 100644
index 000000000..224549501
--- /dev/null
+++ b/tests/objects/mobject_default_value.nim
@@ -0,0 +1,15 @@
+type
+  Clean = object
+    mem: int
+  Default* = object
+    poi: int = 12
+    clc: Clean
+    se*: range[0'i32 .. high(int32)]
+
+  NonDefault* = object
+    poi: int
+
+  PrellDeque*[T] = object
+    pendingTasks*: range[0'i32 .. high(int32)]
+    head: T
+    tail: T
diff --git a/tests/objects/t12753.nim b/tests/objects/t12753.nim
new file mode 100644
index 000000000..1009433be
--- /dev/null
+++ b/tests/objects/t12753.nim
@@ -0,0 +1,22 @@
+discard """
+  output: '''
+(v: [(v: [0.0, 1.1]), (v: [2.2, 3.3])])
+(v: [(v: [0.0, 1.1]), (v: [2.2, 3.3])])
+'''
+"""
+
+type
+  V = object
+    v:array[2,float]
+  M = object
+    v:array[2,V]
+
+var
+  a = M(v:[ V(v:[0.0,1.0]), V(v:[2.0,3.0]) ])
+  b = M(v:[ V(v:[0.0,0.1]), V(v:[0.2,0.3]) ])
+
+echo M(v: [V(v: [b.v[0].v[0] + a.v[0].v[0], b.v[0].v[1] + a.v[0].v[1]]),
+       V(v: [b.v[1].v[0] + a.v[1].v[0], b.v[1].v[1] + a.v[1].v[1]])])
+b = M(v: [V(v: [b.v[0].v[0] + a.v[0].v[0], b.v[0].v[1] + a.v[0].v[1]]),
+      V(v: [b.v[1].v[0] + a.v[1].v[0], b.v[1].v[1] + a.v[1].v[1]])])
+echo b
diff --git a/tests/objects/t17437.nim b/tests/objects/t17437.nim
new file mode 100644
index 000000000..b5c0e0525
--- /dev/null
+++ b/tests/objects/t17437.nim
@@ -0,0 +1,22 @@
+discard """
+  cmd: "nim check $file"
+  errormsg: ""
+  nimout: '''
+t17437.nim(20, 16) Error: undeclared identifier: 'x'
+t17437.nim(20, 16) Error: expression 'x' has no type (or is ambiguous)
+t17437.nim(20, 19) Error: incorrect object construction syntax
+t17437.nim(20, 19) Error: incorrect object construction syntax
+t17437.nim(20, 12) Error: expression '' has no type (or is ambiguous)
+'''
+"""
+
+# bug #17437 invalid object construction should result in error
+
+type
+  V = ref object
+    x, y: int
+
+proc m =
+  var v = V(x: x, y)
+
+m()
diff --git a/tests/objects/t19342.nim b/tests/objects/t19342.nim
new file mode 100644
index 000000000..d40d15a4b
--- /dev/null
+++ b/tests/objects/t19342.nim
@@ -0,0 +1,18 @@
+discard """
+  targets: "c cpp"
+"""
+
+{.compile: "m19342.c".}
+
+# bug #19342
+type
+  Node* {.bycopy.} = object
+    data: array[25, cint]
+
+proc myproc(name: cint): Node {.importc: "hello", cdecl.}
+
+proc parse =
+  let node = myproc(10)
+  doAssert node.data[0] == 999
+
+parse()
diff --git a/tests/objects/t19342_2.nim b/tests/objects/t19342_2.nim
new file mode 100644
index 000000000..6f6d0f2b3
--- /dev/null
+++ b/tests/objects/t19342_2.nim
@@ -0,0 +1,18 @@
+discard """
+  targets: "c cpp"
+"""
+
+{.compile: "m19342.c".}
+
+# bug #19342
+type
+  Node* {.byRef.} = object
+    data: array[25, cint]
+
+proc myproc(name: cint): Node {.importc: "hello", cdecl.}
+
+proc parse =
+  let node = myproc(10)
+  doAssert node.data[0] == 999
+
+parse()
\ No newline at end of file
diff --git a/tests/objects/t20972.nim b/tests/objects/t20972.nim
new file mode 100644
index 000000000..6383dc9b1
--- /dev/null
+++ b/tests/objects/t20972.nim
@@ -0,0 +1,15 @@
+discard """
+  matrix: "--mm:refc -d:release; --mm:orc -d:release"
+"""
+
+{.passC: "-fsanitize=undefined -fsanitize-undefined-trap-on-error -Wall -Wextra -pedantic -flto".}
+{.passL: "-fsanitize=undefined -fsanitize-undefined-trap-on-error -flto".}
+
+# bug #20972
+type ForkedEpochInfo = object
+  case kind: bool
+  of true, false: discard
+var info = ForkedEpochInfo(kind: true)
+doAssert info.kind
+info.kind = false
+doAssert not info.kind
diff --git a/tests/objects/t22301.nim b/tests/objects/t22301.nim
new file mode 100644
index 000000000..8746bf584
--- /dev/null
+++ b/tests/objects/t22301.nim
@@ -0,0 +1,17 @@
+discard """
+  errormsg: "branch initialization with a runtime discriminator is not supported for a branch whose fields have default values."
+"""
+
+# bug #22301
+type
+  Enum = enum A, B
+  Object = object
+    case a: Enum
+    of A:
+      integer: int = 200
+    of B:
+      time: string
+
+let x = A
+let s = Object(a: x)
+echo s
\ No newline at end of file
diff --git a/tests/objects/t3734.nim b/tests/objects/t3734.nim
new file mode 100644
index 000000000..cebef6081
--- /dev/null
+++ b/tests/objects/t3734.nim
@@ -0,0 +1,17 @@
+discard """
+output: "i0"
+"""
+
+type
+  Application = object
+      config: void
+      i: int
+      f: void
+
+proc printFields(rec: Application) =
+  for k, v in fieldPairs(rec):
+    echo k, v
+
+var app: Application
+
+printFields(app)
diff --git a/tests/objects/t4318.nim b/tests/objects/t4318.nim
new file mode 100644
index 000000000..beadd6909
--- /dev/null
+++ b/tests/objects/t4318.nim
@@ -0,0 +1,17 @@
+discard """
+  matrix: "--mm:refc"
+"""
+
+
+type
+  A = object of RootObj
+  B = object of A
+
+method identify(a:A) {.base.} = echo "A"
+method identify(b:B) = echo "B"
+
+var b: B
+
+doAssertRaises(ObjectAssignmentDefect):
+  var a: A = b
+  discard a
diff --git a/tests/objects/tdefaultfieldscheck.nim b/tests/objects/tdefaultfieldscheck.nim
new file mode 100644
index 000000000..8a05439d9
--- /dev/null
+++ b/tests/objects/tdefaultfieldscheck.nim
@@ -0,0 +1,16 @@
+discard """
+  cmd: "nim check --hints:off $file"
+  errormsg: ""
+  nimout:
+'''
+tdefaultfieldscheck.nim(14, 17) Error: type mismatch: got <string> but expected 'int'
+'''
+"""
+
+
+type
+  Date* = object
+    goal: float = 7
+    name: int = "string"
+
+echo default(Date)
diff --git a/tests/objects/tdefaultrangetypescheck.nim b/tests/objects/tdefaultrangetypescheck.nim
new file mode 100644
index 000000000..71e7ac59b
--- /dev/null
+++ b/tests/objects/tdefaultrangetypescheck.nim
@@ -0,0 +1,11 @@
+discard """
+  errormsg: "cannot convert 0 to range 1..5(int)"
+  line: 9
+"""
+
+type
+  Point = object
+    y: int
+    x: range[1..5] = 0
+
+echo default(Point)
diff --git a/tests/objects/tillegal_recursion.nim b/tests/objects/tillegal_recursion.nim
new file mode 100644
index 000000000..428c2e445
--- /dev/null
+++ b/tests/objects/tillegal_recursion.nim
@@ -0,0 +1,7 @@
+discard """
+  errormsg: "Cannot inherit from: 'Foo:ObjectType'"
+  line: 7
+"""
+# bug #1691
+type
+  Foo = ref object of Foo
diff --git a/tests/objects/tillegal_recursion2.nim b/tests/objects/tillegal_recursion2.nim
new file mode 100644
index 000000000..ce2279f04
--- /dev/null
+++ b/tests/objects/tillegal_recursion2.nim
@@ -0,0 +1,6 @@
+discard """
+  errormsg: "Cannot inherit from: 'Foo'"
+  line: 6
+"""
+type
+  Foo = object of Foo
diff --git a/tests/objects/tillegal_recursion3.nim b/tests/objects/tillegal_recursion3.nim
new file mode 100644
index 000000000..c80f29e28
--- /dev/null
+++ b/tests/objects/tillegal_recursion3.nim
@@ -0,0 +1,6 @@
+discard """
+  errormsg: "Cannot inherit from: 'Foo'"
+  line: 6
+"""
+type
+  Foo = object of ref Foo
diff --git a/tests/objects/tobj_asgn_dont_slice.nim b/tests/objects/tobj_asgn_dont_slice.nim
new file mode 100644
index 000000000..ce67c4490
--- /dev/null
+++ b/tests/objects/tobj_asgn_dont_slice.nim
@@ -0,0 +1,25 @@
+discard """
+  matrix: "--mm:refc"
+  outputsub: '''ObjectAssignmentDefect'''
+  exitcode: "1"
+"""
+
+# bug #7637
+type
+  Fruit = object of RootObj
+    name*: string
+  Apple = object of Fruit
+  Pear = object of Fruit
+
+method eat(f: Fruit) {.base.} =
+  raise newException(Exception, "PURE VIRTUAL CALL")
+
+method eat(f: Apple) =
+  echo "fruity"
+
+method eat(f: Pear) =
+  echo "juicy"
+
+let basket = [Apple(name:"a"), Pear(name:"b")]
+
+eat(basket[0])
diff --git a/tests/objects/tobjconstr.nim b/tests/objects/tobjconstr.nim
new file mode 100644
index 000000000..ee5a5b221
--- /dev/null
+++ b/tests/objects/tobjconstr.nim
@@ -0,0 +1,79 @@
+discard """
+  output: '''
+(k: kindA, a: (x: "abc", z: @[1, 1, 3]), method: ())
+(k: kindA, a: (x: "abc", z: @[1, 2, 3]), method: ())
+(k: kindA, a: (x: "abc", z: @[1, 3, 3]), method: ())
+(k: kindA, a: (x: "abc", z: @[1, 4, 3]), method: ())
+(k: kindA, a: (x: "abc", z: @[1, 5, 3]), method: ())
+(k: kindA, a: (x: "abc", z: @[1, 6, 3]), method: ())
+(k: kindA, a: (x: "abc", z: @[1, 7, 3]), method: ())
+(k: kindA, a: (x: "abc", z: @[1, 8, 3]), method: ())
+(k: kindA, a: (x: "abc", z: @[1, 9, 3]), method: ())
+(k: kindA, a: (x: "abc", z: @[1, 10, 3]), method: ())
+(y: 0, x: 123)
+(y: 678, x: 123)
+(z: 89, y: 0, x: 128)
+(y: 678, x: 123)
+(y: 678, x: 123)
+(y: 0, x: 123)
+(y: 678, x: 123)
+(y: 123, x: 678)
+'''
+"""
+
+type
+  TArg = object
+    x: string
+    z: seq[int]
+  TKind = enum kindXY, kindA
+  TEmpty = object
+  TDummy = ref object
+    case k: TKind
+    of kindXY: x, y: int
+    of kindA:
+      a: TArg
+      `method`: TEmpty # bug #1791
+
+proc main() =
+  for i in 1..10:
+    let d = TDummy(k: kindA, a: TArg(x: "abc", z: @[1,i,3]), `method`: TEmpty())
+    echo d[]
+
+main()
+
+# bug #6294
+type
+  A = object of RootObj
+    x*: int
+  B = object of A
+    y*: int
+  BS = object of B
+  C = object of BS
+    z*: int
+
+proc main2 =
+  # inherited fields are ignored, so no fields are set
+  when true:
+    var
+      o: B
+    o = B(x: 123)
+    echo o
+    o = B(y: 678, x: 123)
+    echo o
+
+  # inherited fields are ignored
+  echo C(x: 128, z: 89)          # (y: 0, x: 0)
+  echo B(y: 678, x: 123)  # (y: 678, x: 0)
+  echo B(x: 123, y: 678)  # (y: 678, x: 0)
+
+  when true:
+    # correct, both with `var` and `let`;
+    var b=B(x: 123)
+    echo b                  # (y: 0, x: 123)
+    b=B(y: 678, x: 123)
+    echo b                  # (y: 678, x: 123)
+    b=B(y: b.x, x: b.y)
+    echo b                  # (y: 123, x: 678)
+
+main2()
+GC_fullCollect()
diff --git a/tests/objects/tobjconstr2.nim b/tests/objects/tobjconstr2.nim
new file mode 100644
index 000000000..cf4a694b4
--- /dev/null
+++ b/tests/objects/tobjconstr2.nim
@@ -0,0 +1,57 @@
+discard """
+  output: '''42
+Foo'''
+"""
+
+type TFoo{.exportc.} = object
+ x:int
+
+var s{.exportc.}: seq[TFoo] = @[]
+
+s.add TFoo(x: 42)
+
+echo s[0].x
+
+
+# bug #563
+type
+  Foo {.inheritable.} =
+    object
+      x: int
+
+  Bar =
+    object of Foo
+      y: int
+
+var a = Bar(y: 100, x: 200) # works
+var b = Bar(x: 100, y: 200) # used to fail
+
+# bug 1275
+
+type
+  Graphic = object of RootObj
+    case kind: range[0..1]
+    of 0:
+      radius: float
+    of 1:
+      size: tuple[w, h: float]
+
+var d = Graphic(kind: 1, size: (12.9, 6.9))
+
+# bug #1274
+type
+  K = enum Koo, Kar
+  Graphic2 = object of RootObj
+    case kind: K
+    of Koo:
+      radius: float
+    of Kar:
+      size: tuple[w, h: float]
+
+type NamedGraphic = object of Graphic2
+  name: string
+
+var ngr = NamedGraphic(kind: Koo, radius: 6.9, name: "Foo")
+echo ngr.name
+
+GC_fullCollect()
diff --git a/tests/objects/tobjcov.nim b/tests/objects/tobjcov.nim
new file mode 100644
index 000000000..a12f74702
--- /dev/null
+++ b/tests/objects/tobjcov.nim
@@ -0,0 +1,24 @@
+discard """
+action: compile
+targets: "c"
+"""
+
+# Covariance is not type safe:
+# Note: `nim cpp` makes it a compile error (after codegen), even with:
+# `var f = cast[proc (x: var TA) {.nimcall.}](cast[pointer](bp))`, which
+# currently removes all the `cast` in cgen'd code, hence the compile error.
+
+type
+  TA = object of RootObj
+    a: int
+  TB = object of TA
+    b: array[0..5000_000, int]
+
+proc ap(x: var TA) = x.a = -1
+proc bp(x: var TB) = x.b[high(x.b)] = -1
+
+# in Nim proc (x: TB) is compatible to proc (x: TA),
+# but this is not type safe:
+var f = cast[proc (x: var TA) {.nimcall.}](bp)
+var a: TA
+f(a) # bp expects a TB, but gets a TA
diff --git a/tests/objects/tobject.nim b/tests/objects/tobject.nim
new file mode 100644
index 000000000..a185bebcb
--- /dev/null
+++ b/tests/objects/tobject.nim
@@ -0,0 +1,74 @@
+
+type Obj = object
+  foo: int
+
+proc makeObj(x: int): Obj =
+  result.foo = x
+
+block: # object basic methods
+  block: # it should convert an object to a string
+    var obj = makeObj(1)
+    # Should be "obj: (foo: 1)" or similar.
+    doAssert($obj == "(foo: 1)")
+  block: # it should test equality based on fields
+    doAssert(makeObj(1) == makeObj(1))
+
+# bug #10203
+
+type
+  TMyObj = TYourObj
+  TYourObj = object of RootObj
+    x, y: int
+
+proc init: TYourObj =
+  result.x = 0
+  result.y = -1
+
+proc f(x: var TYourObj) =
+  discard
+
+var m: TMyObj = init()
+f(m)
+
+var a: TYourObj = m
+var b: TMyObj = a
+
+# bug #10195
+type
+  InheritableFoo {.inheritable.} = ref object
+  InheritableBar = ref object of InheritableFoo # ERROR.
+
+block: # bug #14698
+  const N = 3
+  type Foo[T] = ref object
+    x1: int
+    when N == 2:
+      x2: float
+    when N == 3:
+      x3: seq[int]
+    else:
+      x4: char
+      x4b: array[9, char]
+
+  let t = Foo[float](x1: 1)
+  doAssert $(t[]) == "(x1: 1, x3: @[])"
+  doAssert t.sizeof == int.sizeof
+  type Foo1 = object
+    x1: int
+    x3: seq[int]
+  doAssert t[].sizeof == Foo1.sizeof
+
+# bug #147
+type
+  TValue* {.pure, final.} = object of RootObj
+    a: int
+  PValue = ref TValue
+  PPValue = ptr PValue
+
+
+var x: PValue
+new x
+var sp: PPValue = addr x
+
+sp.a = 2
+doAssert sp.a == 2
diff --git a/tests/objects/tobject3.nim b/tests/objects/tobject3.nim
new file mode 100644
index 000000000..9ff1743ce
--- /dev/null
+++ b/tests/objects/tobject3.nim
@@ -0,0 +1,95 @@
+discard """
+  output: '''TBar2
+TFoo
+'''
+"""
+
+## XXX this output needs to be adapted for VCC which produces different results.
+
+# It turned out that it's hard to generate correct for these two test cases at
+# the same time.
+
+type
+  TFoo = ref object of RootObj
+    Data: int
+  TBar = ref object of TFoo
+    nil
+  TBar2 = ref object of TBar
+    d2: int
+
+template super(self: TBar): TFoo = self
+
+template super(self: TBar2): TBar = self
+
+proc Foo(self: TFoo) =
+  echo "TFoo"
+
+#proc Foo(self: TBar) =
+#  echo "TBar"
+#  Foo(super(self))
+# works when this code is uncommented
+
+proc Foo(self: TBar2) =
+  echo "TBar2"
+  Foo(super(self))
+
+var b: TBar2
+new(b)
+
+Foo(b)
+
+# bug #837
+type
+  PView* = ref TView
+  TView* {.inheritable.} = object
+    data: int
+
+  PWindow* = ref TWindow
+  TWindow* = object of TView
+    data3: int
+
+  PDesktop* = ref TDesktop
+  TDesktop* = object of TView
+    data2: int
+
+proc makeDesktop(): PDesktop = new(TDesktop)
+
+proc makeWindow(): PWindow = new(TWindow)
+
+proc thisCausesError(a: PView, b: PView) =
+  discard
+
+var dd = makeDesktop()
+var aa = makeWindow()
+
+thisCausesError(dd, aa)
+
+# bug  #5892
+type
+    Foo6 = distinct array[4, float32]
+    AnotherFoo = distinct array[4, float32]
+
+    AbstractAnimationSampler* = ref object of RootObj
+
+    AnimationSampler*[T] = ref object of AbstractAnimationSampler
+        sampleImpl: proc(s: AnimationSampler[T], p: float): T
+
+    ArrayAnimationSampler*[T] = ref object of AnimationSampler[T]
+
+proc newArrayAnimationSampler*[T](): ArrayAnimationSampler[T] =
+    result.new()
+    result.sampleImpl = nil
+
+discard newArrayAnimationSampler[Foo6]()
+discard newArrayAnimationSampler[AnotherFoo]()
+
+type
+  DefaultIsNone* = pointer | ptr | ref | proc {.nimcall.} | cstring | cstringArray
+  OptionKind* {.pure.} = enum None, Some
+  OptionA* [T] = object of RootObj
+    when T is DefaultIsNone:
+      value: T
+    else:
+      value: T
+      kind: OptionKind
+  SomeA* [T] = object of OptionA[T]
diff --git a/tests/objects/tobject_default_value.nim b/tests/objects/tobject_default_value.nim
new file mode 100644
index 000000000..0cd05e4f3
--- /dev/null
+++ b/tests/objects/tobject_default_value.nim
@@ -0,0 +1,780 @@
+discard """
+  matrix: "-d:nimPreviewRangeDefault --mm:refc; -d:nimPreviewRangeDefault --warningAsError:ProveInit --mm:orc"
+  targets: "c cpp js"
+"""
+
+import std/[times, macros, tables]
+
+type
+  Guess = object
+    poi: DateTime
+
+  GuessDistinct = distinct Guess
+
+block:
+  var x: Guess
+  discard Guess()
+
+  var y: GuessDistinct
+
+  discard y
+
+  discard GuessDistinct(x)
+
+
+import mobject_default_value
+
+block:
+  let x = Default()
+  doAssert x.se == 0'i32
+
+block:
+  let x = default(Default)
+  doAssert x.se == 0'i32
+# echo Default(poi: 12)
+# echo Default(poi: 17)
+
+# echo NonDefault(poi: 77)
+
+block:
+  var x: Default
+  doAssert x.se == 0'i32
+
+type
+  ObjectBase = object of RootObj
+    value = 12
+
+  ObjectBaseDistinct = distinct ObjectBase
+
+  DinstinctInObject = object
+    data: ObjectBaseDistinct
+
+  Object = object of ObjectBase
+    time: float = 1.2
+    date: int
+    scale: range[1..10]
+
+  Object2 = object
+    name: Object
+
+  Object3 = object
+    obj: Object2
+
+  ObjectTuple = tuple
+    base: ObjectBase
+    typ: int
+    obj: Object
+
+  TupleInObject = object
+    size = 777
+    data: ObjectTuple
+
+  Ref = ref object of ObjectBase
+
+  RefInt = ref object of Ref
+    data = 73
+
+  Ref2 = ref object of ObjectBase
+
+  RefInt2 = ref object of Ref
+    data = 73
+
+var t {.threadvar.}: Default
+# var m1, m2 {.threadvar.}: Default
+
+block:
+  doAssert t.se == 0'i32
+
+block: # ARC/ORC cannot bind destructors twice, so it cannot
+      # be moved into main
+  block:
+    var x: Ref
+    new(x)
+    doAssert x.value == 12, "Ref.value = " & $x.value
+
+    var y: RefInt
+    new(y)
+    doAssert y.value == 12
+    doAssert y.data == 73
+
+  block:
+    var x: Ref2
+    new(x, proc (x: Ref2) {.nimcall.} = discard "call Ref")
+    doAssert x.value == 12, "Ref.value = " & $x.value
+
+    proc call(x: RefInt2) =
+      discard "call RefInt"
+
+    var y: RefInt2
+    new(y, call)
+    doAssert y.value == 12
+    doAssert y.data == 73
+
+template main {.dirty.} =
+  block: # bug #16744
+    type
+      R = range[1..10]
+      Obj = object
+        r: R
+
+    var
+      rVal: R = default(R) # Works fine
+      objVal = default(Obj)
+
+    doAssert rVal == 1
+    doAssert objVal.r == 1
+
+  block: # bug #16744
+    type
+      R = range[1..10]
+      Obj = object
+        r: R
+
+    var
+      rVal: R = default(R) # Works fine
+      objVal = Obj()
+
+    doAssert rVal == 1 # it should be 1
+    doAssert objVal.r == 1
+
+  block: # bug #3608
+    type
+      abc = ref object
+        w: range[2..100]
+
+    proc createABC(): abc =
+      new(result)
+      result.w = 20
+
+    doAssert createABC().w == 20
+
+  block:
+    var x = new ObjectBase
+    doAssert x.value == 12
+
+    proc hello(): ref ObjectBase =
+      new result
+
+    let z = hello()
+    doAssert z.value == 12
+
+  block:
+    var base = ObjectBase()
+    var x: ObjectBaseDistinct = ObjectBaseDistinct(base)
+    doAssert ObjectBase(x).value == 12
+    let y = ObjectBaseDistinct(default(ObjectBase))
+    doAssert ObjectBase(y).value == 12
+
+    let m = ObjectBaseDistinct(ObjectBase())
+    doAssert ObjectBase(m).value == 12
+
+    proc hello(): ObjectBaseDistinct =
+      result = ObjectBaseDistinct(default(ObjectBase))
+
+    let z = hello()
+    doAssert ObjectBase(z).value == 12
+
+  block:
+    var x: DinstinctInObject
+    x.data = ObjectBaseDistinct(default(ObjectBase))
+
+    doAssert ObjectBase(x.data).value == 12
+
+  block:
+    var x = Object()
+    doAssert x.value == 12
+    doAssert x.time == 1.2
+    doAssert x.scale == 1
+
+    let y = default(Object)
+    doAssert y.value == 12
+    doAssert y.time == 1.2
+    doAssert y.scale == 1
+
+    var x1, x2, x3 = default(Object)
+    doAssert x1.value == 12
+    doAssert x1.time == 1.2
+    doAssert x1.scale == 1
+    doAssert x2.value == 12
+    doAssert x2.time == 1.2
+    doAssert x2.scale == 1
+    doAssert x3.value == 12
+    doAssert x3.time == 1.2
+    doAssert x3.scale == 1
+
+  block:
+    var x = new Object
+    doAssert x[] == default(Object)
+
+  block:
+    var x = default(Object2)
+    doAssert x.name.value == 12
+    doAssert x.name.time == 1.2
+    doAssert x.name.scale == 1
+
+  block:
+    let x = Object2()
+    doAssert x.name.value == 12
+    doAssert x.name.time == 1.2
+    doAssert x.name.scale == 1
+
+  block:
+    var x: ref Object2
+    new x
+    doAssert x[] == default(Object2)
+
+  block:
+    var x = default(Object3)
+    doAssert x.obj.name.value == 12
+    doAssert x.obj.name.time == 1.2
+    doAssert x.obj.name.scale == 1
+
+  block:
+    var x = Object3()
+    doAssert x.obj.name.value == 12
+    doAssert x.obj.name.time == 1.2
+    doAssert x.obj.name.scale == 1
+
+  when nimvm:
+    # todo
+    discard "fixme"
+  else:
+    when defined(gcArc) or defined(gcOrc):
+      block: #seq
+        var x = newSeq[Object](10)
+        let y = x[0]
+        doAssert y.value == 12
+        doAssert y.time == 1.2
+        doAssert y.scale == 1
+
+      block:
+        var x: seq[Object]
+        setLen(x, 5)
+        let y = x[^1]
+        doAssert y.value == 12
+        doAssert y.time == 1.2
+        doAssert y.scale == 1
+
+      block:
+        var my = @[1, 2, 3, 4, 5]
+        my.setLen(0)
+        my.setLen(5)
+        doAssert my == @[0, 0, 0, 0, 0]
+
+      block:
+        var my = "hello"
+        my.setLen(0)
+        my.setLen(5)
+        doAssert $(@my) == """@['\x00', '\x00', '\x00', '\x00', '\x00']"""
+
+  block: # array
+    var x: array[10, Object] = default(array[10, Object])
+    let y = x[0]
+    doAssert y.value == 12
+    doAssert y.time == 1.2
+    doAssert y.scale == 1
+
+  block: # array
+    var x {.noinit.}: array[10, Object]
+    discard x
+
+  block: # tuple
+    var x = default(ObjectTuple)
+    doAssert x.base.value == 12
+    doAssert x.typ == 0
+    doAssert x.obj.time == 1.2
+    doAssert x.obj.date == 0
+    doAssert x.obj.scale == 1
+    doAssert x.obj.value == 12
+
+  block: # tuple in object
+    var x = default(TupleInObject)
+    doAssert x.data.base.value == 12
+    doAssert x.data.typ == 0
+    doAssert x.data.obj.time == 1.2
+    doAssert x.data.obj.date == 0
+    doAssert x.data.obj.scale == 1
+    doAssert x.data.obj.value == 12
+    doAssert x.size == 777
+
+  type
+    ObjectArray = object
+      data: array[10, Object]
+
+  block:
+    var x = default(ObjectArray)
+    let y = x.data[0]
+    doAssert y.value == 12
+    doAssert y.time == 1.2
+    doAssert y.scale == 1
+
+  block:
+    var x: PrellDeque[int]
+    doAssert x.pendingTasks == 0
+
+  type
+    Color = enum
+      Red, Blue, Yellow
+
+    ObjectVarint = object
+      case kind: Color
+      of Red:
+        data: int = 10
+      of Blue:
+        fill = "123"
+      of Yellow:
+        time = 1.8'f32
+
+    ObjectVarint1 = object
+      case kind: Color = Blue
+      of Red:
+        data1: int = 10
+      of Blue:
+        fill2 = "123"
+        cry: float
+      of Yellow:
+        time3 = 1.8'f32
+        him: int
+
+  block:
+    var x = ObjectVarint(kind: Red)
+    doAssert x.kind == Red
+    doAssert x.data == 10
+
+  block:
+    var x = ObjectVarint(kind: Blue)
+    doAssert x.kind == Blue
+    doAssert x.fill == "123"
+
+  block:
+    var x = ObjectVarint(kind: Yellow)
+    doAssert x.kind == Yellow
+    doAssert typeof(x.time) is float32
+
+  block:
+    var x = default(ObjectVarint1)
+    doAssert x.kind == Blue
+    doAssert x.fill2 == "123"
+    x.cry = 326
+
+  type
+    ObjectVarint2 = object
+      case kind: Color
+      of Red:
+        data: int = 10
+      of Blue:
+        fill = "123"
+      of Yellow:
+        time = 1.8'f32
+
+  block:
+    var x = ObjectVarint2(kind: Blue)
+    doAssert x.fill == "123"
+
+  block:
+    type
+      Color = enum
+        Red, Blue, Yellow
+  
+    type
+      ObjectVarint3 = object
+        case kind: Color = Blue
+        of Red:
+          data1: int = 10
+        of Blue:
+          case name: Color = Blue
+          of Blue:
+            go = 12
+          else:
+            temp = 66
+          fill2 = "123"
+          cry: float
+        of Yellow:
+          time3 = 1.8'f32
+          him: int
+
+    block:
+      var x = default(ObjectVarint3)
+      doAssert x.kind == Blue
+      doAssert x.name == Blue
+      doAssert x.go == 12
+
+    block:
+      var x = ObjectVarint3(kind: Blue, name: Red, temp: 99)
+      doAssert x.kind == Blue
+      doAssert x.name == Red
+      doAssert x.temp == 99
+
+  block:
+    type
+      Default = tuple
+        id: int = 1
+        obj: ObjectBase
+        name: string
+
+      Class = object
+        def: Default
+
+      Member = object
+        def: Default = (id: 777, obj: ObjectBase(), name: "fine")
+
+    block:
+      var x = default(Default)
+      doAssert x.id == 1
+      doAssert x.obj == default(ObjectBase)
+      doAssert x.name == ""
+
+    block:
+      var x = default(Class)
+      doAssert x.def == default(Default)
+      doAssert x.def.id == 1
+      doAssert x.def.obj == default(ObjectBase)
+      doAssert x.def.name == ""
+
+    block:
+      var x = default(Member)
+      doAssert x.def.id == 777
+      doAssert x.def.obj == default(ObjectBase)
+      doAssert x.def.name == "fine"
+
+  block:
+    var x {.noinit.} = 12
+    doAssert x == 12
+
+    type
+      Pure = object
+        id: int = 12
+
+    var y {.noinit.}: Pure
+    doAssert y.id == 0
+
+    var z {.noinit.}: Pure = Pure(id: 77)
+    doAssert z.id == 77
+
+  block: # bug #20681
+    type A = object
+      d: DateTime = DateTime()
+
+    let x = default(A)
+    doAssert $x == "(d: Uninitialized DateTime)"
+
+  block: # bug #20715
+    block:
+      type
+        Foo = enum
+          A
+          B
+
+        Bar = object
+          case foo: Foo
+          of A:
+            t: range[-1..2]
+          else: discard
+
+      var d = default(Bar)
+      doAssert d.t == -1
+
+    block:
+      type
+        Foo = enum
+          A
+          B
+
+        Bar = object
+          case foo: Foo
+          of A:
+            t: range[0..2]
+          else: discard
+
+      var d = default(Bar)
+      doAssert d.t == 0
+
+    block: # bug #20740
+      block:
+        proc foo(x: static DateTime = Datetime()) =
+          discard
+
+        foo()
+
+      block:
+        macro foo(x: static DateTime) =
+          discard x
+
+        macro foo2: untyped =
+          var x = DateTime()
+
+          result = quote do:
+            foo(`x`)
+
+        foo2()
+
+
+  block: # issue #20699
+    type
+      Either[A,B] = object
+        case kind:bool
+        of false:
+          b: B
+        of true:
+            a: A
+      O = object of RootRef
+
+    proc oToEither(o:O):Either[O,void] =
+      Either[O,void](kind:true,a: o)
+
+    discard oToEither(O())
+
+  block: # bug #20695
+    type
+      Default = object
+        tabs: Table[string, int] = initTable[string, int]()
+
+    let d = default(Default)
+    doAssert d.tabs.len == 0
+
+  block:
+    type
+      Default = object
+        tabs: Table[string, int] = Table[string, int]()
+
+    let d = default(Default)
+    doAssert d.tabs.len == 0
+
+
+  block:
+    type DjangoDateTime = distinct DateTime
+
+    type Default = object
+      data: DjangoDateTime = DjangoDateTime(DateTime())
+
+    let x = default(Default)
+    doAssert x.data is DjangoDateTime
+
+  block:
+    type DjangoDateTime = distinct DateTime
+
+    type Default = object
+      data = DjangoDateTime(DateTime())
+
+    let x = default(Default)
+    doAssert x.data is DjangoDateTime
+
+  block:
+    type
+      Result2 = object
+        case o: bool
+        of false:
+          e: float
+        of true:
+          v {.requiresInit.} : int = 1
+
+    proc startSessionSync(): Result2 =
+      return Result2(o: true)
+
+    proc mainSync =
+      let ff = startSessionSync()
+      doAssert ff.v == 1
+
+    mainSync()
+
+  block:
+    type
+      Result2 = object
+        v {.requiresInit.} : int = 1
+
+    proc startSessionSync(): Result2 =
+      return Result2()
+
+    proc mainSync =
+      let ff = startSessionSync()
+      doAssert ff.v == 1
+
+    mainSync()
+
+  block: # bug #21801
+    func evaluate(i: int): float =
+      0.0
+
+    func evaluate(): float =
+      0.0
+
+    type SearchOptions = object
+        evaluation: proc(): float = evaluate
+
+  block:
+    func evaluate(): float =
+      0.0
+
+    type SearchOptions = object
+        evaluation: proc(): float = evaluate
+
+  block:
+    func evaluate(i: int): float =
+      0.0
+
+    type SearchOptions = object
+        evaluation = evaluate
+  block:
+    type
+      Result[T, E] = object
+        when T is void:
+          when E is void:
+            oResultPrivate: bool
+          else:
+            case oResultPrivate: bool
+            of false:
+              eResultPrivate: E
+            of true:
+              discard
+        else:
+          when E is void:
+            case oResultPrivate: bool
+            of false:
+              discard
+            of true:
+              vResultPrivate: T
+          else:
+            case oResultPrivate: bool
+            of false:
+              eResultPrivate: E
+            of true:
+              vResultPrivate: T
+
+
+    template `?`[T, E](self: Result[T, E]): auto =
+      let v = (self)
+      if not v.oResultPrivate:
+        when compiles(`assignResult?`(default(typeof(result)))):
+          when typeof(result) is typeof(v):
+            `assignResult?`(v)
+          elif E is void:
+            `assignResult?`(err(typeof(result)))
+          else:
+            `assignResult?`(err(typeof(result), v.eResultPrivate))
+          return
+        else:
+          return
+            when typeof(result) is typeof(v):
+              v
+            elif E is void:
+              err(typeof(result))
+            else:
+              err(typeof(result), v.eResultPrivate)
+
+      when not(T is void):
+        v.vResultPrivate
+        
+    type R = Result[int, string]
+
+    proc testAssignResult() =
+      var assigned: bool
+      template `assignResult?`(v: Result) =
+        assigned = true
+        result = v
+
+      proc failed(): Result[int, string] =
+        discard
+
+      proc calling(): Result[int, string] =
+        let _ = ? failed()
+        doAssert false
+
+      let r = calling()
+      doAssert assigned
+
+    when nimvm:
+      when not defined(js):
+        testAssignResult()
+    else:
+      testAssignResult()
+
+  block: # bug #22123
+    type Thing = object
+      x: float32 = 1
+
+    type ThingWithArray = object
+        arr: array[256, float32]
+        n: float32 = 1
+
+    type Container = ref object
+        thing: array[5, Thing]
+        thing_with_array: array[5, ThingWithArray]
+
+    var foo = new Container
+    doAssert int(foo.thing[0].x) == 1
+
+  block: # bug #22613
+    type
+      K = enum
+        A = "a"
+        B = "b"
+      T = object
+        case kind: K = B
+        of A:
+          a: int
+        of B:
+          b: float
+
+    doAssert T().kind == B
+
+  block: # bug #22926
+    type
+      Direction = enum
+        North
+        South
+        East
+        West
+
+      ArrayObj1 = object
+        list: array[Direction, int]
+
+      ArrayObj2 = object
+        list: array[Direction, int] = [1, 2, 3, 4]
+
+    block:
+      var a: ArrayObj1
+      doAssert a.list[West] == 0
+      var b = default ArrayObj1
+      doAssert b.list[North] == 0
+
+
+    block:
+      var a: ArrayObj2
+      doAssert a.list[West] == 0
+      var b = default ArrayObj2
+      doAssert b.list[North] == 1
+
+  block:
+    type limited_float = range[1.2..20.0]
+    doAssert default(limited_float) == 1.2
+
+
+  block:
+    type
+      range1 = range[1..10]
+      range2 = range[-1..10]
+
+    proc foo =
+      doAssert default(range1) == 1
+      doAssert default(range2) == -1
+
+      let s = default(array[5, range1])
+      doAssert s == [range1 1, 1, 1, 1, 1]
+
+    foo()
+
+  block:
+    type
+      Object = object
+        id: range[1.2..29.3]
+
+    var s = default(Object)
+    doAssert s.id == 1.2
+
+  block: # bug #23943
+    type limited_int = range[1..20]
+    var d: limited_int;
+    doAssert d == 1
+
+static: main()
+main()
diff --git a/tests/objects/tobjects_issues.nim b/tests/objects/tobjects_issues.nim
new file mode 100644
index 000000000..f1a416d04
--- /dev/null
+++ b/tests/objects/tobjects_issues.nim
@@ -0,0 +1,117 @@
+discard """
+  output: '''
+tbObj of TC true
+true
+5
+true
+is Nil false
+'''
+"""
+
+
+block t1053:
+  type
+    TA = object of RootObj
+      a: int
+    TB = object of TA
+      b: int
+    TC = object of TB
+      c: int
+
+  proc test(p: TA) =
+    if p of TB:
+      echo "tbObj of TC ", p of TC
+
+  var v = TC()
+  v.a = 1
+  v.b = 2
+  v.c = 3
+  test(v)
+
+
+
+block t924:
+  type
+    MyObject = object of RootObj
+      x: int
+  var asd: MyObject
+
+  proc isMyObject(obj: RootObj) =
+      echo obj of MyObject
+      if obj of MyObject:
+          let a = MyObject(obj)
+          echo a.x
+
+  asd.x = 5
+  isMyObject(asd)
+
+
+
+block t4673:
+  type
+    BaseObj[T] = ref object of RootObj
+    SomeObj = ref object of BaseObj[int]
+
+  proc doSomething[T](o: BaseObj[T]) =
+    echo "true"
+  var o = new(SomeObj)
+  o.doSomething() # Error: cannot instantiate: 'T'
+
+
+
+block t1658:
+  type
+    Loop = ref object
+      onBeforeSelect: proc (L: Loop)
+
+  var L: Loop
+  new L
+  L.onBeforeSelect = proc (bar: Loop) =
+    echo "is Nil ", bar.isNil
+
+  L.onBeforeSelect(L)
+
+
+
+block t2508:
+  type
+    GenericNodeObj[T] = ref object
+      obj: T
+    Node = ref object
+      children: seq[Node]
+      parent: Node
+      nodeObj: GenericNodeObj[int]
+
+  proc newNode(nodeObj: GenericNodeObj): Node =
+    result = Node(nodeObj: nodeObj)
+    newSeq(result.children, 10)
+
+  var genericObj = GenericNodeObj[int]()
+  var myNode = newNode(genericObj)
+
+
+
+block t2540:
+  type
+    BaseSceneNode[T] = ref object of RootObj
+      children: seq[BaseSceneNode[T]]
+      parent: BaseSceneNode[T]
+    SceneNode[T] = ref object of BaseSceneNode[T]
+    SomeObj = ref object
+
+  proc newSceneNode[T](): SceneNode[T] =
+    new result
+    result.children = @[]
+
+  var aNode = newSceneNode[SomeObj]()
+
+
+block t3038:
+  type
+    Data[T] = ref object of RootObj
+      data: T
+    Type = ref object of RootObj
+    SubType[T] = ref object of Type
+      data: Data[T]
+    SubSubType = ref object of SubType[int]
+    SubSubSubType = ref object of SubSubType
diff --git a/tests/objects/tobjects_various.nim b/tests/objects/tobjects_various.nim
new file mode 100644
index 000000000..55db9312e
--- /dev/null
+++ b/tests/objects/tobjects_various.nim
@@ -0,0 +1,120 @@
+discard """
+  output: '''
+34
+b
+wohoo
+baz
+'''
+"""
+
+
+block tobject2:
+  # Tests the object implementation
+  type
+    TPoint2d {.inheritable.} = object
+      x, y: int
+    TPoint3d = object of TPoint2d
+      z: int # added a field
+
+  proc getPoint( p: var TPoint2d) =
+    writeLine(stdout, p.x)
+
+  var p: TPoint3d
+
+  TPoint2d(p).x = 34
+  p.y = 98
+  p.z = 343
+
+  getPoint(p)
+
+
+
+block tofopr:
+  type
+    TMyType {.inheritable.} = object
+      len: int
+      data: string
+
+    TOtherType = object of TMyType
+
+  proc p(x: TMyType): bool =
+    return x of TOtherType
+
+  var
+    m: TMyType
+    n: TOtherType
+
+  doAssert p(m) == false
+  doAssert p(n)
+
+
+
+block toop:
+  type
+    TA = object of RootObj
+      x, y: int
+    TB = object of TA
+      z: int
+    TC = object of TB
+      whatever: string
+
+  proc p(a: var TA) = echo "a"
+  proc p(b: var TB) = echo "b"
+
+  var c: TC
+  p(c)
+
+
+
+block tfefobjsyntax:
+  type
+    Foo = object
+      a, b: int
+      s: string
+    FooBar = object of RootObj
+      n, m: string
+    Baz = object of FooBar
+
+  proc invoke(a: ref Baz) =
+    echo "baz"
+
+  # check object construction:
+  let x = (ref Foo)(a: 0, b: 45, s: "wohoo")
+  echo x.s
+
+  var y: ref FooBar = (ref Baz)(n: "n", m: "m")
+  invoke((ref Baz)(y))
+
+
+
+block t3012:
+  type
+    A {.inheritable.} = object
+    C {.inheritable.} = ref object
+
+  type
+    AA = ref object of A
+    CC = ref object of C
+
+
+
+block t7244:
+  type
+    Foo = ref object of RootRef
+    Bar = ref object of Foo
+
+  proc test(foo: var Foo) = discard
+  proc test(bar: var Bar) = test(Foo(bar))
+
+
+import std/macros
+
+#bug #20856
+macro ensureImplWorksOnConstr(t: typed): untyped =
+  expectKind(t, nnkObjConstr)
+  doAssert t[0].getTypeInst.getImpl.repr == "A = object"
+  doAssert t[0].getImpl.repr == "A = object"
+
+type A = object
+
+ensureImplWorksOnConstr(A())
diff --git a/tests/objects/tobjpragma.nim b/tests/objects/tobjpragma.nim
new file mode 100644
index 000000000..789b3ec4e
--- /dev/null
+++ b/tests/objects/tobjpragma.nim
@@ -0,0 +1,53 @@
+discard """
+  output: '''
+2
+3
+9
+257
+1
+2
+3
+'''
+disabled: "true"
+"""
+
+# Disabled since some versions of GCC ignore the 'packed' attribute
+
+# Test
+
+type
+  Foo {.packed.} = object
+    a: int8
+    b: int8
+
+  Bar {.packed.} = object
+    a: int8
+    b: int16
+
+  Daz {.packed.} = object
+    a: int32
+    b: int8
+    c: int32
+
+
+var f = Foo(a: 1, b: 1)
+var b: Bar
+var d: Daz
+
+echo sizeof(f)
+echo sizeof(b)
+echo sizeof(d)
+echo (cast[ptr int16](f.addr)[])
+
+type
+  Union {.union.} = object
+    a: int8
+    b: int8
+
+var u: Union
+u.a = 1
+echo u.b
+u.a = 2
+echo u.b
+u.b = 3
+echo u.a
diff --git a/tests/objects/toop1.nim b/tests/objects/toop1.nim
new file mode 100644
index 000000000..3e9b24990
--- /dev/null
+++ b/tests/objects/toop1.nim
@@ -0,0 +1,85 @@
+discard """
+  output: "34[]o 5"
+"""
+# Test the stuff in the tutorial
+import macros
+
+type
+  TFigure = object of RootObj    # abstract base class:
+    draw: proc (my: var TFigure) {.nimcall.} # concrete classes implement this
+
+proc init(f: var TFigure) =
+  f.draw = nil
+
+type
+  TCircle = object of TFigure
+    radius: int
+
+proc drawCircle(my: var TCircle) = stdout.writeLine("o " & $my.radius)
+
+proc init(my: var TCircle) =
+  init(TFigure(my)) # call base constructor
+  my.radius = 5
+  my.draw = cast[proc (my: var TFigure) {.nimcall.}](drawCircle)
+
+type
+  TRectangle = object of TFigure
+    width, height: int
+
+proc drawRectangle(my: var TRectangle) = stdout.write("[]")
+
+proc init(my: var TRectangle) =
+  init(TFigure(my)) # call base constructor
+  my.width = 5
+  my.height = 10
+  my.draw = cast[proc (my: var TFigure) {.nimcall.}](drawRectangle)
+
+macro `!` (n: varargs[untyped]): typed =
+  let n = callsite()
+  result = newNimNode(nnkCall, n)
+  var dot = newNimNode(nnkDotExpr, n)
+  dot.add(n[1])    # obj
+  if n[2].kind == nnkCall:
+    # transforms ``obj!method(arg1, arg2, ...)`` to
+    # ``(obj.method)(obj, arg1, arg2, ...)``
+    dot.add(n[2][0]) # method
+    result.add(dot)
+    result.add(n[1]) # obj
+    for i in 1..n[2].len-1:
+      result.add(n[2][i])
+  else:
+    # transforms ``obj!method`` to
+    # ``(obj.method)(obj)``
+    dot.add(n[2]) # method
+    result.add(dot)
+    result.add(n[1]) # obj
+
+type
+  TSocket* = object of RootObj
+    FHost: int # cannot be accessed from the outside of the module
+               # the `F` prefix is a convention to avoid clashes since
+               # the accessors are named `host`
+
+proc `host=`*(s: var TSocket, value: int) {.inline.} =
+  ## setter of hostAddr
+  s.FHost = value
+
+proc host*(s: TSocket): int {.inline.} =
+  ## getter of hostAddr
+  return s.FHost
+
+var
+  s: TSocket
+s.host = 34  # same as `host=`(s, 34)
+stdout.write(s.host)
+
+# now use these classes:
+var
+  r: TRectangle
+  c: TCircle
+init(r)
+init(c)
+r!draw
+c!draw()
+
+#OUT 34[]o 5
diff --git a/tests/objects/trequireinit.nim b/tests/objects/trequireinit.nim
new file mode 100644
index 000000000..202667b02
--- /dev/null
+++ b/tests/objects/trequireinit.nim
@@ -0,0 +1,10 @@
+discard """
+  errormsg: "The MPlayerObj type doesn't have a default value. The following fields must be initialized: foo."
+"""
+
+type
+  MPlayerObj* {.requiresInit.} = object
+    foo: range[5..10] = 5
+
+var a: MPlayerObj
+echo a.foo
\ No newline at end of file
diff --git a/tests/objects/tunsafenew.nim b/tests/objects/tunsafenew.nim
new file mode 100644
index 000000000..6c1b33cd9
--- /dev/null
+++ b/tests/objects/tunsafenew.nim
@@ -0,0 +1,10 @@
+discard """
+  errormsg: "conversion from int literal(-1) to Natural is invalid"
+"""
+
+type
+  Obj = object
+    case b: bool
+    else: discard
+var o: ref Obj
+unsafeNew(o, -1)
\ No newline at end of file
diff --git a/tests/objects/tunsafenew2.nim b/tests/objects/tunsafenew2.nim
new file mode 100644
index 000000000..83112bcfc
--- /dev/null
+++ b/tests/objects/tunsafenew2.nim
@@ -0,0 +1,15 @@
+discard """
+valgrind: "leaks"
+matrix: "-d:useMalloc"
+targets: "c cpp"
+"""
+
+type
+  Obj = object
+    case b: bool
+    else: discard
+    a: UncheckedArray[byte]
+
+var o: ref Obj
+unsafeNew(o, sizeof(Obj) + 512)
+zeroMem(addr o.a, 512)
diff --git a/tests/objects/twhen1.nim b/tests/objects/twhen1.nim
new file mode 100644
index 000000000..fe072a46b
--- /dev/null
+++ b/tests/objects/twhen1.nim
@@ -0,0 +1,89 @@
+const Z = 0
+
+type
+  Foo[T] = object
+   when true:
+     u: int
+   else:
+     v: int
+  Foo1[T] = object
+   when T is int:
+     x: T
+   elif true:
+     z: char
+  Foo2[x:static[int]] = object
+    when (x and 1) == 1:
+      x: array[x+1,int]
+    else:
+      x: array[x,int]
+
+  Foo3 = Foo2[128]
+
+  # #8417
+  Foo4[A: static[int]] = object
+    when Z == 0:
+      discard
+    else:
+      discard
+
+block:
+  var x: Foo[int] = Foo[int](u: 42)
+  doAssert x.u == 42
+
+# Don't evaluate `when` branches before the type is instantiated
+block:
+  var x: Foo1[bool] = Foo1[bool](z: 'o')
+  doAssert x.z == 'o'
+
+block:
+  var x: Foo2[3]
+  doAssert x.x.len == 4
+
+block:
+  var x: Foo2[4]
+  doAssert x.x.len == 4
+
+block:
+  var x: Foo3
+  doAssert x.x.len == 128
+
+block:
+  var x: Foo4[0]
+
+type
+  MyObject = object
+    x: int
+    when (NimMajor, NimMinor) >= (1, 1):
+      y: int
+discard MyObject(x: 100, y: 200)
+
+block: # Ensure when evaluates properly in objects
+  type X[bits: static int] = object #22474
+    when bits >= 256:
+     data32: byte
+    else:
+     data16: byte
+
+  static:
+    discard X[255]().data16
+    discard X[256]().data32
+
+
+  type ComplexExprObject[S: static string, I: static int, Y: static auto] = object
+    when 'h' in S and I < 10 and Y isnot float:
+      a: int
+    elif I > 30:
+      b: int
+    elif typeof(Y) is float:
+      c: int
+    else:
+      d: int
+
+  static:
+    discard ComplexExprObject["hello", 9, 300i32]().a
+    discard ComplexExprObject["", 40, 30f]().b
+    discard ComplexExprObject["", 20, float 30]().c
+    discard ComplexExprObject["", 20, ""]().d
+
+
+